From The Collaborative International Dictionary of English v.0.48 :
Lenity \Len"i*ty\ (-t[y^]), n. [L. lenitas, fr. lenis soft, mild: cf. OF. lenit['e]. See Lenient.] The state or quality of being lenient; mildness of temper or disposition; gentleness of treatment; softness; tenderness; clemency; -- opposed to severity and rigor. [1913 Webster] His exceeding lenity disposes us to be somewhat too severe. --Macaulay. Syn: Gentleness; kindness; tenderness; softness; humanity; clemency; mercy. [1913 Webster]From WordNet (r) 3.0 (2006) :
lenity n 1: mercifulness as a consequence of being lenient or tolerant [syn: lenience, leniency, mildness, lenity]